I purchased two of these chairs at a phenomenal price.
At first glance I loved their style and lines. 
The reviews were all spit on ! The chairs are great... comfortable and firm.
I'm a big man (not obese) and I didn't sink into the cushions... I
This chair is not a sinker. How ever, if you're older or injured the chair is easy getting in and out of and really comfy because it supports to your body when seated. 
Is buy this chair again !

I'll check back in a month or so with an update.